Free download Roller Derby Test O'Matic Lite APK for Android, PC. Latest version is 0.4.4, update at March 20, 2016
Roller Derby Test O'Matic Lite version 0.4.4 is only one variant.
The Roller Derby Test O'Matic app is based on the popular website of the same name, and will give you multiple choice questions to help you learn the WFTDA rules...